Home ventilation, West Glamorgan
Positive input ventilation (PIV) in West Glamorgan
Loft or wall units that gently push filtered air into the home to tackle condensation, across West Glamorgan.
- From £750 inc VAT per home
- Free survey
PIV is often a good fix for West Glamorgan homes with condensation on every window.
We carry out positive input ventilation (PIV) across West Glamorgan, including Swansea, Neath, Briton Ferry, Gorseinon and Clydach. Prices use Wales rates. The survey is free for new installations on the UK mainland, and the quote that follows is fixed and in writing.
PIV in West Glamorgan at a glance
- Area
- West Glamorgan, Wales
- Towns listed
- 6, largest Swansea
- Postcode districts
- SA2, SA4, SA6, SA7, SA8 and SA9
- Price region
- Wales
- Survey
- Free survey (UK mainland)
What positive input ventilation (PIV) involves
Flats without a loft use a wall-mounted unit that draws air from outside through a cored hole. PIV works well in houses and flats with general condensation on windows and cold walls. It does not replace extract fans: kitchens and bathrooms still need their own extract to remove steam at source.
Heated PIV
A heater module tempers the incoming air in cold weather. Useful in homes where people feel draughts.
Wall-mounted PIV for flats
Draws air from outside through an outside wall. Suits flats and homes with no loft space.
PIV with fan upgrades
PIV plus humidity-controlled extract fans in the kitchen and bathroom for the most stubborn condensation.
Guide prices in West Glamorgan
| Work | Guide price |
|---|---|
| Positive input ventilation (PIV) loft unit, supplied and fitted (per home) | £750–£1,325 inc VAT |
| Wall-mounted PIV unit for a flat (core drilled through an outside wall) (per flat) | £950–£1,600 inc VAT |
| Heater module or heated PIV unit (extra over a standard unit) (extra) | £140–£280 inc VAT |
Guide prices using Wales rates. Prices include VAT at 20%. A guide price is not a quote: we confirm a fixed price in writing first.
Signs it is time to call us
- Black mould on window reveals and in corners of bedrooms
- Musty smell in wardrobes or behind furniture
- The house feels stuffy and damp rather than cold
Rules in Wales
Wales has its own Part F ventilation guidance, published by the Welsh Government, and work is checked by building control. Extract rates and commissioning are checked against the Welsh guidance on every job.
How the job runs
- Survey
- Fixed quote
- Install
- Set up
- Hand over
Towns we cover in West Glamorgan
Questions about positive input ventilation (PIV) in West Glamorgan
Are prices different in West Glamorgan?
Our guide prices are adjusted by region. In West Glamorgan we use Wales rates, so positive input ventilation (PIV) loft unit, supplied and fitted is typically £750 to £1,325 inc VAT per home.
Will PIV make my house cold?
Most units temper or reduce the flow when the incoming air is cold, and a heated unit warms it. Placed correctly on the landing, the air spreads gently rather than blowing on anyone.
Can PIV be fitted in a flat?
Yes. Flats without loft space use a wall-mounted PIV unit that draws air from outside through an outside wall.
Is the survey free in West Glamorgan?
For new installations on the UK mainland, yes. The survey is free and the quote that follows is fixed and in writing. Servicing, testing and repair visits are charged, and we confirm the cost before booking.
Which rules apply to ventilation in West Glamorgan?
In Wales, the Welsh Government's own Approved Document F (2022 edition) applies to ventilation in homes, with a new edition taking effect on 4 March 2027. Rented homes must be fit for human habitation under the Renting Homes (Wales) Act 2016, and workplaces must be ventilated under the Workplace (Health, Safety and Welfare) Regulations 1992.
Most West Glamorgan PIV jobs are done in half a day, so ask about the next available date.
Other services in West Glamorgan
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